Oar-propeller for boats



(No Model.) 2 Sheets-Sheet l.

` H. HURLBURT.

UAR PROPBLLER FOR BOATS. No. 518,605. Patented Apr. 24, 1894.

(No Model.)

'H. HURLBURT OAR PROPELLER P011 BOATS.

` Patented Apr. 24. 1894.

llllllllllll Nllll sheets-sheen 2.

UNITED f STATES PATENT OFFICE.

HORACE HURLBURT, `or LEAvENwoRrH, KANSAS.

oAR-PRoPELLl-:R FOR BOATS.

" SPEGIFICATION forming part of Letters Patent No. 518,605, dated April24, 1894. l Application led September 3| 1892. Renewed March 19, 1894.Serial No. 504.277. (No model.)

.To all whom it may conceive:

Be it known that I, HORACE l-IURLBURT, of

Soldiers Home, Leavenworth, Leavenworth and steering mechanismespecially designed to be operated by a number of persons for pleasureparties and for light traffic, and the object of my invention is toprovide an effective mechanism which may be operated by paddles at ahigh rate of speed with but little exertion and which may be quicklyhandled to back or turn abruptly and within close surroundings. t

The certain details of construction hereinafter set forth for actuatingthe car-wheels and rudder also constitute features of my invention.

In the accompanying drawings, Figure 1 is a plan of a small boat capableof seating a dozen persons comfortably, embodying my invention. Fig. 2is a longitudinal vertical sectional elevation on the line 2-e2 of Fig.1,- and Fig. 8 is a transverse section on the line 3 3 of Fig. 1 lookingtoward the stern-end of the boat. Fig. 4t is a perspective detail of theoars and the means forsecuring them to the end of the shaft.

longitudinally aligned pair of uprights connected at their upper ends bya horizontal bar or timber B; there being thus two of these longitudinaltimbers. Horizontal cross- `bars B2, also connect and brace each pair oftraisversely aligned uprights at their upper en s.

To the upper ends of the pieces B are se- To this floor-grating andcured bracket plates Bs `which extend upwardlyand are connected at theirupper ends by a longitudinal bar B4. A bracket plate B5 also" extendsfrom one of these uprights to the other, parallel with and beneath thebar B4, and together with the bar B4 are bored to receive verticalspindles Cof seats C', C2 arranged one forwardly of the other andsecured at any suitable elevation by set-screws O3 passing through thebar B4. The longitudinal beams B' support at their forward ends bearingblocks D in which the oar-wheel shaft E is fitted and similar bearingblocks secured to the gunwales of the boat, also serve to support saidshaft. The ends of the shaft E have each a pair of plates or disks F, Fof unequal size, the small plate F being secured upon the shaft a shortdistance inside of the plate F. These plates F, F having each four holesor sockets through which the ends of oars are passed and securely heldso that the oars will have the required angle for catch ing the water.The counter shaft G and a similar counter shaft Gr operate parallel witheach other and with the oar shaft in bearings upon the longitudinaltimbers B'. These shafts have cranks H crank-pins H and pedals I securedat their inner ends and wit-hin .convenient reach of the operator oroperators upon the seats C and C2 which are raised or lowered ashereinbefore described to suit personsof different height.

The shaft G has secured to it a friction or `brake-wheel K, and apivoted brake-shoe, adapted to engage the periphery of the wheelcounter-pin has a roller 7L which bears upon` a spring actuated presserbar arranged beneath the plane of rotation of the same atan angle whichwill serve to throw the crank olf of its center should it stop at thispoint at any time and together with the spring Lwill

